27 results
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Tuberculosis Testing ... microscopy • Testing ... sputum sample = 95% ... #Tuberculosis #Testing ... #Diagnosis #Workup
Syncope Diagnostic Testing and Evaluation: Cost Effectiveness
Frequency obtained - Abnormal findings - Helped determine etiology of
Syncope Diagnostic Testing ... Syncope #diagnosis #workup ... #testing #Cost ... Effectiveness #table
Intraoperative Massive Blood Loss - Guidelines for Crises in Anaesthesia
Expected or unexpected major haemorrhage

❶ Call for
with them): • Activate ... required. ❻ Begin active ... point of care testing ... • Use lab testing ... Diagnosis #Management #Workup
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
in SIADH RAAS Inactive ... Cerebral Salt Wasting ... diuresis) RAAS Active ... differential #diagnosis #table
The Spectrum of Tuberculosis

As shown in the graphic from our Primer, exposure to M. tuberculosis can
#Tuberculosis #Testing ... IGRA #Spectrum #Table ... #Subclinical #Active
Helicobacter Pylori Testing  Methods - Sensitivity and Specificity

Serology - 85% - 79% - Does not
Helicobacter Pylori Testing ... not distinguish active ... other means of testing ... - 95-100% - Not ... Pylori #HPylori #Testing
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... rate (ESR) • C-reactive ... - CCP antibody testing ... sensitivity - >95% ... Arthritis #laboratory #workup
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Familial renal Mg wasting ... Low #Magnesium #Table ... Classification #Causes #Workup
Drugs Used for the Treatment of COVID-19 Infection

** Editor Note (from ophthalmology MD input) - Hydroxychloroquine/chloroquine
risks/benefits in setting ... = mechanism of action ... #Pharmacology #Table
Recommended initial testing for patients being evaluated for glomerular disease 

24-hour urine collection - Quantify proteinuria.
Recommended initial testing ... disorders that activate ... #glomerular #testing ... #workup #diagnosis